Fall Frittata with Breakfast Sausage, Butternut Squash, and Kale

As the Frittata Queen of the internet, I felt it was my duty to experiment with a hardy, fall version of our favorite breakfast (brunch?). I had a similar frittata at a restaurant on the North Fork of Long Island a few years ago. It was filled with layers of vegetables, sausage, and rich, sweet squash. It was thicker than the frittatas I usually make and was absolutely delicious... that is what I was going for here. This can be made as a breakfast, lunch, or even dinner, and is GREAT for meal prep. In fact, I made this, had a slice for dinner and now have breakfast/lunch prepped for the week. I would really recommend this veggie and protein packed meal to have on hand.